? .gdbinit
? kdump
? kdump-ioctl.c
? kdump.html1
? siginfo.c
Index: kdump.c
===================================================================
RCS file: /cvsroot/src/usr.bin/kdump/kdump.c,v
retrieving revision 1.132
diff -u -r1.132 kdump.c
--- kdump.c	23 Jul 2019 01:54:51 -0000	1.132
+++ kdump.c	1 Apr 2020 23:56:02 -0000
@@ -59,6 +59,7 @@
 #include <ctype.h>
 #include <err.h>
 #include <signal.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -132,6 +133,7 @@
 int
 main(int argc, char **argv)
 {
+	unsigned long int u;
 	unsigned int ktrlen, size;
 	int ch;
 	void *m;
@@ -140,10 +142,15 @@
 	const char *emul_name = "netbsd";
 	int col;
 	char *cp;
+	bool am_i_ioctlname;
+	bool am_i_ioctldecode;
 
 	setprogname(argv[0]);
 
-	if (strcmp(getprogname(), "ioctlname") == 0) {
+	am_i_ioctlname = strcmp(getprogname(), "ioctlname") == 0;
+	am_i_ioctldecode = strcmp(getprogname(), "ioctldecode") == 0;
+
+	if (am_i_ioctlname || am_i_ioctldecode) {
 		int i;
 
 		while ((ch = getopt(argc, argv, "e:")) != -1)
@@ -163,8 +170,13 @@
 			usage();
 
 		for (i = 0; i < argc; i++) {
-			ioctldecode(strtoul(argv[i], NULL, 0));
-			(void)putchar('\n');
+			u = strtoul(argv[i], NULL, 0);
+			if (am_i_ioctlname)
+				printf("%s\n", ioctlname(u));
+			else {
+				ioctldecode(u);
+				(void)putchar('\n');
+			}
 		}
 		return 0;
 	}
@@ -1235,13 +1247,16 @@
 static void
 usage(void)
 {
-	if (strcmp(getprogname(), "ioctlname") == 0) {
+	const char *p;
+
+	p = getprogname();
+	if (strcmp(p, "ioctlname") == 0 || strcmp(p, "ioctldecode") == 0) {
 		(void)fprintf(stderr, "Usage: %s [-e emulation] <ioctl> ...\n",
-		    getprogname());
+		    p);
 	} else {
 		(void)fprintf(stderr, "Usage: %s [-dElNnRT] [-e emulation] "
 		   "[-f file] [-m maxdata] [-p pid]\n             [-t trstr] "
-		   "[-x | -X size] [file]\n", getprogname());
+		   "[-x | -X size] [file]\n", p);
 	}
 	exit(1);
 }